Mixing device.



T. B. JORGENSEN. MIXING DEVICE.

APPLICATION FILED OOT.21,1912. 1,125,337, Patented Jan.19, 1915.

v ZSHEETS-SHEET 1.

. 9 Witnesses: 4/8 7 9 Inventor: I

Attorney T. B. JORGENSEN.

MIXING DEVICE.

f APPLICATION FILED 0GT.21, 1912.

1,125,387. Patented Jan.19,1915.

2 SHEETS-SHEET 2.

Inventor: W1tnesses:

Att rneyg UNITED STATES PATENT canton.

.1...1. v H; uh"... THORLiEIF IB. J'ORGENSEN, OF CHICAGO, ILLINOIS.

iiuxrive DEVICE.

Application filed October 21, 1912.

mixing .deylces for household ,.re fai rant, bakery, caf and analogous uses in the .beatii'ig up. ofeggs orfrostings ,or. the mixing ofliquids of various kinds, and consists, essential in the nov 1 and pecu iar combination o parts and etails of construction as hereinafter first fully set forth and d escribed and then pointed gut 1n the cla ms, ,The;object of my inventlon is the production of a durable, efficient, and cheaply constructed mixer of the class described whichis actuated by the means of spiral springs or the.like, to replace the manually operated devices now in use. p I he drawin s l e dy referted Whlch serve to illustrate my said invention .more

.' full Figure 1 is a s'ide eevation of my new y inyented mixing deviceandFig. 2, a front yiew of the same. jig. 3.is.a,plan withcertain,partsbroken away. Fig. 4: is a side elevation of the frame or housingofthe device, certain parts ,being shown in section tobetter illustrate details of construction, and Fig. 5,.a front, view thereof. Fig. 6 is a, longitudinal, vertical section inline 0 O of ..Fi,g. 1, with certain details ellminated. Fig. 7 ,is a transverse, vertical section of a detail. of construction as taken line 1 1 of Fig. 6. ,Fig. 8 is a rea r riew of Fig. Like arts are desi nated by corresponding symbols or characters-of reference in all the li ures of the drawings. I

A liest seen in Figs. .4 and represents the frame.. o r housing of mymix'ingdevice and it comprises an annular band 11p 1, haying it its periphery a. .tangientia perpendicular y disposed boss. 2,w lch 18 13.05- sessed. ofa pentral aperture 3,.and a threaded, .or tapped ,cross openiiig g inpominnnr'cation therewith; the latter for the reception .Thisf invention ha s referenceto' Specification of Letters Patent.

Patented Jan. 19, 1915.

Serial No. 726,974. 1

of a thumb screw 5, by means of which an upstanding rod or standard 6 may be held in fixed position in central aperture 3 already mentioned. Depending from said annular band 1, in alinement with a vertical line drawn through the center of said band, is alug ,7, in which is fixedly fastened a horizont-al, outwardly projecting stud 8 for purposes. hereinafter described. Extending upwardly from the periphery of said band, at a-point diametrically opposite lug 7, is ar' ranged an upwardly and outwardly projectmg yoke 9,,terminating in a downwardly extending bracket 10, in front of said annular band, said bracket comprising parallel mem bers 11 and 12, connected together at their lower extremities by an integral brace 13, allas clearly shown in Figs. 4 and 5.

Extending outwardly from opposite sides of the annular band 1, in a plane coincident to the axis of said band, is an open U-shaped yoke 14:, consistingof longitudinal members 15 and 16 and a rear cross member 17. At a point. axially of said band, cross member 17 is provided with a hub 18 havingan axial opening 19 for the reception therein of an axiallyv extending shaft 20, the opposite end of which shaft is supported and journaled in circular openings 21 and 22 in bracket 10. Attention is now drawn to the fact that annular band 1 with its boss 2, lug 7, yoke 9, bracket 10, and open yoke 14, in its entirety comprising the I frame, or housing A, is formed integrally in cast or malleable iron or steel in the process of casting,,and When the parts are properly proportioned, forms anextremely light, cheap, and eflicient .hous ing for the operative elements of my invention. I

. O n axially extending shaft 20, at a point directly adjacent member 11- of bracket 10, is keyed or otherwise fastened a spur gear 23 of suitable size, and meshing into this is a spur pinion 24, fastened to a shaft 25, rota tably mounted in openings 26 and 27 in members 11 and 12 of bracket 10 a proper distance above and parallel to axial shaft 20. l Shaft projects exteriorly of member 12, and terminates in a squared end 28 for application of a suitable handle or crank (not shown), by which said shaft and through it and pinion 24 and gear 23, axial shaft20 may be rotated. Within the space inclosed members 11 and 12 of bracket 10, on shaft 25, is located a ratchet wheel 29, which ratchet is engaged by a pawlor dog 30, pivoted to member 11 by a stud or bolt 31. The object of this ratchet and pawl is to prevent reverse rotation of shaft 20, in a manner readily understood.

Loosely mounted on shaft 20 adjacent cross bar 17 of yoke 14, is a cup shaped,

cylindrical casing 32, within which is contained a flat wound spiral spring 33. The inner end of this spring is fixedly attached to shaft 20 by rivets 34, and the outer end thereof is afiixed to the wall of the casin 32 by studs 35, or other similar means. Y The open end of casing 32 isclosed by a disk 36, to prevent the ingress of dust matter to the interior thereof.

Casing 32 is possessed of an outwardly extending axial sleeve 37, freely mounted on shaft 20, and on this sleeve is adapted to loosely revolve a like cup shaped casing 38, the open end of which is similarly closed by a disk 39. Within casing 38 is located a flat wound spiral spring 40, the inner end of which isfastened to sleeve 37 of casing 32,

and the outer'extremity, of which, to the wall of said casing 38. Said casing 38 ex-- tends through the interior of annularband 1 and has on its periphery, adjacent said band, an integrally formed spur gear 41. This gear meshes into a pinion 42, loosely mounted on stud 8 of lug 7, which pinion is integrally formed with a large bevel gear 43.

In the brace 13 of bracket 10 are provided vertical, circular openings 44 and 44 for the reception of the upper extremities of parallel members 45 and 45 of a guide wire 46. The lower portion of these members are bent into semicircular form in reverse direction to each other, as seen at 47 and 47%. At the lower end, these bends terminate in a U-shaped connecting crook 48, the vertical legs 49 and 49 of which are in a line axial with the parallel members 45 and 45. The upper ends of the parallel members 45 and 45 are fixedly held in the openings 44 and 44? by riveting or pinning, of in any other suitable manner. On these said parallel members, directly under and adjacent brace 13, are loosely journaled intermeshing pinions 50 and 50, the first mentioned of which also engages the bevel gear 43. Loosely embracing members 45 and 45*, terminating at the beginning of the bends 47 and 47*, and engaging pinions 50 and 50, are tubes 51 and 51". These tubes have at their lower ends annular mixing 2 blades 52 and 52, which blades are pivoted a suitable base B having an upstanding bracket G, into which bracket, supporting dirt, or other.

rod or standard 6, hereinbefore referred to, is adapted to be freely received and fixed therein by a thumb screw 60.

The operation of my mixing device may now be described as follows :-The spiral springs 33 and 40 are first wound up by rotating shaft 28 by a suitable crank handle in an obvious manner. A bowl of the ma terial to be mixed is then placed in position on base B and the housing A properly adjusted on standard 6 by thumb screw 5 so that the mixing blades 52 and 52 are submerged in the mixture. Springs 33 and 40 being properly wound up, and the shaft 20 restrained from reverse rotation by the ratchet 29 and pawl 30, said springs will impart a rotary motion to spur gear 41, and, that in turn, to pinion 42, bevel gear 43, pinions 50 and 50, tubes 51 and 51, and mixing blades 52 and 52, in an entirely 0bvious manner.

Herein I have described the preferred instance, I may employ only one largev spiral actuating spring instead of two smaller ones connected in series as shown, or I may use more than two, or I may locate the ratchet shaft at the side of the axial shaft instead of above the same. All these changes are within the scope of the skilled mechanic and are .to be included within the sage of my invention.

aving thus fully described my invention, I claim as new and desire to secure to me by Letters Patent of the United States p 1. In a mixing device, a vertical member of substantially ring-like form, a horizontal yoke extending rearwardly of the member,

a bracket composed of spaced vertical parts arranged in front of said member in spaced relation thereto and connected to the top of the latter in depending relation thereto, a shaft connected to the yoke and extending through said ring-like vertical member and connected to both of said bracket parts,-a short shaft located above the first named shaft and journaled in said bracket parts, gear connectionsbetween the shafts located in the space between the bracket and vertical member, a pawl and ratchetfor the short shaft located in. the space between said bracket parts, mixing means connected to the lower ends of said vertical parts of the bracket, and a spring actuated casing projecting through said vertical member andhaving a gear located in the space between the bracket and vertical -member and mounted on the first named pending from its top and arranged in spaced relation to the front face ct said memher, a bearing connected to said member and located on the rear face thereof, a shaft journaied in said bearing and in said bracket and extending through 7 said vertical member, a spring actuated drum mounted on the shaft and having a gear thereon, a pinion on the shaft, said gear and pinion being each disposed in the space between the bracket and the front face of said member, means confined in part WILLIAM 0. STARK. 

